/* ============================================================
   hhlsq.com — auto.css 汽车后市场建站方案页专属样式
   布局指纹：H8 网格动感 Hero（2×2 错位图格 + 中央白卡）｜B4图文交替｜B2卡片墙｜B1统计带｜B7 Bento｜B14表单｜B15 CTA
   签名元素：S7 连续折线
   ============================================================ */

/* ---------- 1. Hero H8 网格动感 ---------- */
.auto-hero{ background:var(--gray-100); padding:clamp(40px,5vw,72px) 0 clamp(70px,8vw,110px); position:relative; overflow:hidden; }
.auto-hero__inner{ position:relative; min-height:560px; }
.auto-hero__grid{
  display:grid; grid-template-columns:1fr 1fr; gap:26px;
  padding:28px 8px 0;
}
.auto-hero__shot img{
  width:100%; aspect-ratio:16/10; object-fit:cover;
  border-radius:var(--radius-lg); box-shadow:var(--shadow-md);
}
.auto-hero__shot--a{ transform:rotate(-1.6deg); }
.auto-hero__shot--b{ transform:rotate(1.4deg) translateY(26px); }
.auto-hero__shot--c{ transform:rotate(1.2deg) translateY(-10px); }
.auto-hero__shot--d{ transform:rotate(-1.4deg) translateY(16px); }

.auto-hero__card{
  position:absolute; left:50%; top:50%; transform:translate(-50%,-50%);
  width:min(560px,88%); background:#fff; border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg); padding:clamp(28px,3.4vw,44px);
  text-align:center;
}
.auto-hero__title{ font-size:clamp(26px,3.6vw,42px); line-height:1.28; margin-bottom:16px; }
.auto-hero__title em{ font-style:normal; color:var(--gold); }
.auto-hero__lead{ color:var(--gray-600); font-size:15.5px; margin-bottom:24px; }
.auto-hero__actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.auto-sig{ display:block; width:220px; margin:20px auto 0; opacity:.9; }

/* ---------- 2. B4 图文交替流 ---------- */
.auto-flow__list{ display:flex; flex-direction:column; gap:clamp(40px,5vw,64px); }
.auto-pair{ display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.auto-pair--reverse .auto-pair__media{ order:2; }
.auto-pair__media img{ width:100%; aspect-ratio:16/9; object-fit:cover; border-radius:var(--radius-lg); box-shadow:var(--shadow-md); }
.auto-pair__num{ font-size:46px; font-weight:700; color:transparent; -webkit-text-stroke:1.5px var(--gold); line-height:1; display:block; margin-bottom:10px; }
.auto-pair__body h3{ font-size:22px; margin-bottom:12px; }
.auto-pair__body p{ color:var(--gray-600); font-size:15px; margin-bottom:14px; }
.auto-pair__list li{ position:relative; padding:6px 0 6px 22px; font-size:14.5px; color:var(--gray-700); }
.auto-pair__list li::before{ content:""; position:absolute; left:0; top:14px; width:8px; height:8px; border-radius:50%; background:var(--gold); }

/* ---------- 3. B2 错位卡片墙 ---------- */
.auto-cards__grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.auto-card{
  background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); padding:28px 26px; transition:all .3s ease;
}
.auto-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.auto-card:nth-child(even){ transform:translateY(18px); }
.auto-card:nth-child(even):hover{ transform:translateY(12px); }
.auto-card svg{ width:32px; height:32px; color:var(--navy-600); stroke-width:1.4; margin-bottom:14px; }
.auto-card:hover svg{ color:var(--gold); }
.auto-card h3{ font-size:17px; margin-bottom:10px; }
.auto-card p{ font-size:14px; color:var(--gray-600); margin:0; line-height:1.75; }

/* ---------- 4. B1 数据统计带 ---------- */
.auto-stats{ background:linear-gradient(135deg,var(--navy-900),var(--navy-800)); }
.auto-stats__grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; text-align:center; }
.auto-stat{ position:relative; padding:8px 0; }
.auto-stat + .auto-stat::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:1px; height:46px; background:rgba(232,238,245,.16);
}
.auto-stat .stat-num{ color:#fff; }
.auto-stat .stat-note{ color:rgba(232,238,245,.66); }

/* ---------- 5. B7 Bento 网格 ---------- */
.auto-bento__grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:20px;
  grid-template-areas:"a a b" "c d d" "c e f";
}
.auto-bento__cell{
  background:#fff; border:1px solid var(--gray-200); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm); padding:26px 24px; transition:all .3s ease;
}
.auto-bento__cell:hover{ transform:translateY(-5px); box-shadow:var(--shadow-md); }
.auto-bento__cell h3{ font-size:17px; margin-bottom:8px; }
.auto-bento__cell p{ font-size:14px; color:var(--gray-600); margin:0; line-height:1.7; }
.auto-bento__cell--lg{ grid-area:a; }
.auto-bento__cell--lg h3{ font-size:20px; }
.auto-bento__cell--navy{ background:var(--navy-900); border-color:transparent; }
.auto-bento__cell--navy h3{ color:#fff; }
.auto-bento__cell--navy p{ color:rgba(232,238,245,.78); }
.auto-bento__cell--navy{ grid-area:d; }
.auto-bento__grid .auto-bento__cell:nth-child(3){ grid-area:b; }
.auto-bento__grid .auto-bento__cell:nth-child(4){ grid-area:c; }
.auto-bento__grid .auto-bento__cell:nth-child(5){ grid-area:e; }
.auto-bento__grid .auto-bento__cell:nth-child(6){ grid-area:f; }

/* ---------- 6. B14 表单预约 ---------- */
.auto-form__split{ display:grid; grid-template-columns:1fr 1.08fr; gap:48px; align-items:center; }
.auto-form__text{ color:var(--gray-600); font-size:15px; margin-bottom:20px; }
.auto-form__text a{ font-weight:600; color:var(--navy-700); }
.auto-form__points li{ display:flex; align-items:baseline; gap:10px; padding:8px 0; font-size:14.5px; color:var(--gray-700); border-bottom:1px dashed var(--gray-300); }
.auto-form__points li::before{ content:""; width:8px; height:8px; border-radius:50%; background:var(--gold); flex-shrink:0; }
.auto-form__points li:last-child{ border-bottom:none; }
.auto-form__related{ margin-top:22px; font-size:13.5px; color:var(--gray-500); }
.auto-form__related a{ color:var(--navy-600); }
.auto-form__related a:hover{ color:var(--gold); }

/* ---------- 7. B15 CTA ---------- */
.auto-cta{ padding-bottom:clamp(70px,8vw,110px); }
.auto-cta .cta-banner{
  background:linear-gradient(135deg,var(--navy-800),var(--navy-700) 55%,var(--navy-600));
  border-radius:28px; padding:clamp(44px,5vw,72px) clamp(24px,4vw,56px);
  text-align:center; position:relative; overflow:hidden; box-shadow:var(--shadow-lg);
}
.auto-cta .cta-banner::before{
  content:""; position:absolute; right:-90px; top:-90px; width:280px; height:280px;
  border-radius:50%; border:1px dashed rgba(255,255,255,.22);
}
.auto-cta .cta-banner::after{
  content:""; position:absolute; left:-60px; bottom:-120px; width:220px; height:220px;
  border-radius:50%; border:1px dashed rgba(176,141,74,.4);
}
.auto-cta .cta-banner__inner{ position:relative; z-index:1; }
.auto-cta .cta-banner__title{ color:#fff; font-size:clamp(22px,3vw,32px); margin-bottom:12px; }
.auto-cta .cta-banner__sub{ color:rgba(232,238,245,.78); font-size:15px; margin-bottom:28px; }
.auto-cta .cta-banner__actions{ display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }
.auto-cta .cta-banner__ghost{ border-color:rgba(255,255,255,.5); color:#fff; }
.auto-cta .cta-banner__ghost:hover{ background:#fff; color:var(--navy-700); }

/* ---------- 响应式 ---------- */
@media (max-width: 992px){
  .auto-hero__inner{ min-height:0; }
  .auto-hero__grid{ padding:0; }
  .auto-hero__card{ position:static; transform:none; width:100%; margin-top:-40px; position:relative; z-index:2; }
  .auto-stats__grid{ grid-template-columns:repeat(2,1fr); }
  .auto-cards__grid{ grid-template-columns:repeat(2,1fr); }
  .auto-card:nth-child(even){ transform:none; }
  .auto-card:nth-child(even):hover{ transform:translateY(-6px); }
  .auto-pair{ grid-template-columns:1fr; gap:28px; }
  .auto-pair--reverse .auto-pair__media{ order:0; }
  .auto-bento__grid{ grid-template-columns:1fr 1fr; grid-template-areas:none; }
  .auto-bento__cell--lg,.auto-bento__cell--navy,.auto-bento__grid .auto-bento__cell:nth-child(n){ grid-area:auto; }
  .auto-form__split{ grid-template-columns:1fr; }
}
@media (max-width: 640px){
  .auto-hero{ padding-bottom:60px; }
  .auto-hero__grid{ gap:14px; }
  .auto-hero__shot--b,.auto-hero__shot--c,.auto-hero__shot--d{ transform:none; }
  .auto-stats__grid{ grid-template-columns:1fr 1fr; gap:14px; }
  .auto-cards__grid{ grid-template-columns:1fr; }
  .auto-bento__grid{ grid-template-columns:1fr; }
  .auto-hero__actions .btn{ width:100%; }
}